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Dive into the research topics where Jan Šmidrkal is active.

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Featured researches published by Jan Šmidrkal.


Tetrahedron Letters | 1999

Lipophilic N-[2-hydroxyimino-2-(pyridin-2-yl)ethyl]trialkylammonium salts - new ligands for metal ion extractions into organic solvents

Radek Cibulka; František Hampl; Jan Šmidrkal; František Liška

Abstract Several lipophilic N-[2-hydroxyimino-2-(pyridin-2-yl)ethyl]trialkylammonium salts 1 were synthesized from the corresponding oxo compounds and hydroxylamine in the presence of Ni2+ ions which stabilize the oximes by chelation. Salts 1 are surfactants possessing a powerful chelating subunit. Their ability to extract different metal ions from aqueous solutions into organic solvents was tested by metal ion transport through a liquid membrane.


Collection of Czechoslovak Chemical Communications | 1988

Synthesis of fagaronine

Jan Šmidrkal


Collection of Czechoslovak Chemical Communications | 1984

Synthesis of sanguinarine, chelerythrine, and oxysanguinarine

Jan Šmidrkal


Tetrahedron Letters | 2004

A novel synthesis of parent resorc[4]arene and its partial alkyl ethers

Jan Stursa; Hana Dvorakova; Jan Šmidrkal; Hana Petrickova; Jitka Moravcová


Collection of Czechoslovak Chemical Communications | 1982

3-Ethoxy-2-hydroxybenzaldehyde as a starting compound for synthesis of isoquinoline alkaloids

Jan Šmidrkal


Collection of Czechoslovak Chemical Communications | 2005

Metal ion transport through bulk liquid membrane mediated by cationic ligand surfactants

Eva Svobodová; Radek Cibulka; František Hampl; Jan Šmidrkal; František Liška


Collection of Czechoslovak Chemical Communications | 1989

The HLB number determination of polyoxyethylene surfactants

Josef Šilha; Milan Bareš; Ivo Zeman; Jan Šmidrkal


Collection of Czechoslovak Chemical Communications | 1982

Alkylation of ergoline derivatives at position N (1)

Jan Šmidrkal; M. Semonský


Zeitschrift für Chemie | 2010

Eine einfache Darstellung von 2,3-Methylendioxybenzaldehyd

Jan Šmidrkal; Jan Trojánek


Collection of Czechoslovak Chemical Communications | 1985

Attempts at the synthesis of 11-methoxysubstituted benzo[c]phenantridines

Jan Šmidrkal; Jiří Holubek; Jiří Šlanger; J. Trojánek

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František Liška

Charles University in Prague

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J. Trojánek

Czechoslovak Academy of Sciences

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Radek Cibulka

Institute of Chemical Technology in Prague

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Eva Svobodová

Institute of Chemical Technology in Prague

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Jan Stursa

Academy of Sciences of the Czech Republic

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Jitka Moravcová

Institute of Chemical Technology in Prague

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Josef Šilha

Charles University in Prague

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